As part of the AeroSTREAM project's collaborative efforts, a series of expert visits were conducted, enhancing knowledge exchange and partnership development. On November 23rd, 2023, Sarajevo welcomed notable experts in aerospace technology. José Ramiro from USE-FRS shared insights on autonomous systems integration, while Abeje Mersha of SAX focused on advanced propulsion technologies. Additionally, Chiara Gabellieri of UT explored cutting-edge navigation systems. The visit by Juan Manuel Marredo Píriz from CATEC further enriched discussions on aerial vehicle design and testing methodologies. These expert exchanges contribute significantly to advancing research and innovation within the AeroSTREAM project.